FR815503A
(en )
1937-07-13
Mouthpiece for the outlet of glass melting furnaces or the like, used in the manufacture of glass strands and the like
FR845340A
(en )
1939-08-18
Wall improvements for glass melting furnaces
FR790971A
(en )
1935-11-30
Improvements to tank furnaces and processes for the manufacture of glass
FR761156A
(en )
1934-03-13
Improvements in the construction of crucible furnaces for melting glass or other industries
FR775150A
(en )
1934-12-20
Improvements made to electric furnaces, in particular to those for melting and treating glass or the like
FR807010A
(en )
1936-12-31
Vault for melting furnaces
FR712362A
(en )
1931-10-01
Shaft furnace for melting glass and other similar materials
FR792996A
(en )
1936-01-14
Improvements in the manufacture of glass in the tank furnace
FR733208A
(en )
1932-10-03
Improvements to shaft furnaces for melting and refining glass
FR749291A
(en )
1933-07-21
Crucible furnaces for melting
FR816791A
(en )
1937-08-17
Hollowed and ventilated locking crucible or crucible for glass or other molten materials
FR633152A
(en )
1928-01-23
Improvements made in the construction of pot melting furnaces for glassworks, crystal works and similar industries
FR844970A
(en )
1939-08-07
Improvements in the construction of walls for glass melting furnaces
FR618090A
(en )
1927-03-02
Pot or crucible for glass melting furnaces
FR710817A
(en )
1931-08-29
Jar furnace for melting glass
FR764370A
(en )
1934-05-19
Electric basin furnace for melting glass
FR703356A
(en )
1931-04-29
Improvements to pre-crucibles for glass melting furnaces
FR758937A
(en )
1934-01-26
Improvements in induction furnaces
DK57679C
(en )
1940-06-10
Glass melting furnace with ladle containers.
FR758938A
(en )
1934-01-26
Improvements in crucible furnaces for melting metals
FR756498A
(en )
1933-12-11
Electric glass melting furnace
FR787931A
(en )
1935-10-01
Refractory material for glass furnaces, glass crucibles, and other similar articles
FR763294A
(en )
1934-04-26
Electric furnace for melting glass
FR669685A
(en )
1929-11-19
Improvements in the construction of pot melting furnaces used in glassworks and similar industries
FR699895A
(en )
1931-02-20
Improvements to tank furnaces for melting glass